Air-conditioning breakdowns on subway cars happened about 10 times a day during June, July and August between 2010 and 2014, according to analysis of Metropolitan Transportation Authority data obtained by The New York World through open records request. In total, there were nearly 6,500 “hot cars” over the five-year period covered by the data. Unsurprisingly, the vast majority of those incidents occurred during the hottest months of the year.

Shortly after the piece came out, BetaNYC reached out to Harry Stevens, to see if they were willing to share the data with the community. Without any hesitation, The New York World shared the curated data - which they painstakingly extracted and analyzed from the FOILed PDFs.